![]() Schrödinger, E.: Zum heisenbergschen unschärfeprinzip. Robertson, H.P.: The uncertainty principle. Heisenberg, W.: Über den anschaulichen inhalt der quantentheoretischen. Our results suggest that the indefinite causal order along with a tiny amount of quantum discord can act as a resource in creating nonzero quantum coherence in the absence of entanglement. This finding may have some interesting applications on its own where discord can be consumed as a resource. We find that when the indefinite causal order of channels acts on one half of the entangled pair, then the shared state loses entanglement, but can retain nonzero quantum discord. We show this specifically for the superposition of two completely depolarizing channels, two partially depolarizing channels and one completely depolarizing channel along with a unitary operator. Here, we present a method for the creation of quantum coherence at a remote location via the use of entangled state and indefinite causal order. However, if there is a noisy channel acting on one side of the shared resource, then it is not possible to create perfect quantum coherence remotely. ![]() Quantum coherence of an arbitrary qubit can be created at a remote location using maximally entangled state, local operation and classical communication. ![]() Their policies may differ from this site.Quantum coherence is a prime resource in quantum computing and quantum communication. Some links on this page may take you to non-federal websites. Some full text articles may not yet be available without a charge during the embargo (administrative interval). When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH We shall also try to use the geometric phase discovered by the PI and a co-PI towards constructing a quantumcomputer. We shall try to use the weak measurement, discovered by the PI, to obtain better quantum communication. Computations which would take a present state-of-the-art computer more than the life-time of the universe to do would be done in less than a second by a quantum computer. The quantum coherence of the wave function also opens up the possibilities for secure communication using quantum systems and the construction of a quantum computer. The latter work is relevant to a wide class of problems involving surface waves and polarized light propagating in optical fibers, where various impurities may be present. Some new aspects of scattering due to the Aharonov-Bohm effect will be studied. This will be used to investigate the Aharonov-Bohm effect (discovered by the PI), which is the non-local interaction of the wave function with the electromagnetic field. We shall also use new non-local quantities that we have introduced, called modular variables, to study the non-local quantum coherence of the wave function. We plan to investigate the latter uncertainty principle in relation to the general relativistic gravitational field, using our earlier work that obtains this uncertainty relation using only measurements intrinsic to the system under investigation. A consequence of this is the Heisenberg uncertainty principle according to which there is a minimum to the product of the uncertainties of the position and momentum or time and energy of the particle that is given by the Planck's constant. Primary Place of Performance Congressional District:Ī fundamental aspect of quantum phenomena is the non-local coherence of the quantum wave that describes the state of a particle, which is called the wave-particle duality. University South Carolina Research Foundation Jeeva Anandan (Former Co-Principal Investigator).Yakir Aharonov (Principal Investigator) Pawel Mazur (Co-Principal Investigator).
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